Effects of Moving Task Condition on Improving Operational Performance with Slight Delay

We made a hypothesis that appropriate delay in operational system would improve its operational performance from some reviews and papers. As an experimental result, performance was improved in slight delay. The sensory evaluation also confirmed that the subject felt support even though there was no actual force support. Another experiment confirmed that depth movement restriction, and the move ratio of the virtual tool on a screen to the input device affected to improve performance. We also investigated that difference of task conditions, i.e. moving task distance and target area size, affect to performance improvement.